diff options
Diffstat (limited to 'include/net/flow.h')
| -rw-r--r-- | include/net/flow.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/net/flow.h b/include/net/flow.h index c91e2aae3fb1..1426681f7cf3 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -12,6 +12,14 @@ #include <linux/atomic.h> #include <linux/uidgid.h> +/* + * ifindex generation is per-net namespace, and loopback is + * always the 1st device in ns (see net_dev_init), thus any + * loopback device should get ifindex 1 + */ + +#define LOOPBACK_IFINDEX 1 + struct flowi_common { int flowic_oif; int flowic_iif; @@ -85,7 +93,7 @@ static inline void flowi4_init_output(struct flowi4 *fl4, int oif, kuid_t uid) { fl4->flowi4_oif = oif; - fl4->flowi4_iif = 0; + fl4->flowi4_iif = LOOPBACK_IFINDEX; fl4->flowi4_mark = mark; fl4->flowi4_tos = tos; fl4->flowi4_scope = scope; |